多功能桥式复合机的数控系统开发分析

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1、AbstractAbstractWiththerapiddevelopmentofCNCtechnology,numericalcontrolofthestonecuttingmachinehadbeenatrendforProductupgrades.Inordertoimprovetheautomationofthestonebridgecuttingmachineandextenditsrangeofprocessing.itisraisedasanobjectofstudytoexploitanopenCN

2、C(computernumericalcontrol)system.firstlythistextputforwardcircularinterpolationonbasisofvector,itneedsvelocityandradiustocalculateangleofdeviationbetweentwoconnectinginterpolationpoint，thenobtainavectorfrominterpolationpointandcenterofradiustocalculateanother

3、vectorofconnectinginterpolationpoint,meanwhileMachiningprecisionisguaranteed.SecondlythispaperputforwardnewS-Curveacceleration-decelerationcontrolmethodwhichbaseonunitofjerk,wecancalculatetheaccelerationandvelocityofnextinterpolationpointaccordingtocurrentacce

4、lerationandvelocitywhichmakeachievementofjerk,velocityanddisplacementmoresimple.Experimentalresultsshowthatalgorithmcanguaranteethevelocityandaccelerationcontinuosandimprovetheflexibilityofsystem.OnthebasisofanalyzingthestructureofDrawingExchangeFile(DXF),whic

5、hintroducedhowtogetthedrawinginformationfromDXFfile.Theinterfaceprogramwasdevelopedtoobtaingraphicinformationandconvertthenintomachiningcoordinates.CombiningCNCmachiningtechnology,thepostprocessingmodulecouldthengenerateCNCinstructioncodesacceptabletomachineto

6、olsinordertocreateaCNCprogramautomatically.Accordingtothefeatureofcutting-grindingintegrationandsawing-millingcombination,thetoolstructureandanti-shearconditions.Thesystem'scutterradiuscompensationofsawing,millingandgrindingisdeducedbyadoptionofCfunctioncutter

7、radiuscompensationalgorithm.additionaly,theentileprogramofcuttercompensationandthecuttercompensationprogramofsawing,millingandgrindingIII华侨大学硕士学位论文arealldesignedinthetext.OntheplateformofVisualC++6.0,thesoftwareispromgrammed,theCNCsystemofthestonebridgecutting

8、machinewithbetterfunctionisfinallydeveloped.Theresultsofthetestalsoshowthatthesystemcanrealizeautomaticprocessinganditrunsaccuratelyandstablely,meetingtherequrmentsofcutting-grindi